I thought so too, but then there is also this line:

> At some point, Hyperloop Transportation Technologies will likely have to shift from this work-when-you-can-but-don't-expect-money model to something a bit more conventional with, you know, employees.

So no one is actually full time.

I'm thrilled to see people working on this, but the article seems like a mess.

The "nearly all of them have day jobs" seems to clearly refer to the 100 engineers mentioned earlier in the paragraph. I think trose's description of them as working professionals is probably correct.

The 25 students would not be considered engineers -- in fact, it doesn't even sound like they're studying to be engineers.